Can time machine restore system language files deleted by "monolingual'?

I've tried getting some answers to this from Apple support forums and my local mac forum but didn't get much info...

I've removed some important language files while using monolingual
(namely -English (American) -English (British) not realizing these are subset and required).
I should've read the FAQ first... now some programs are appearing in weird character formats.

Can I restore these language files with my Time Machine back ups?
Which folder would I need to replace back with previous file?

Since I did this only late last night, I should be able to just replace a certain system file folder, without causing much headache, I'm hoping!